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==Introduction==

This page has information about Power Management for Linux. Power Management exists because many products are handheld or mobile, and consumers are interested in using their products for as long as possible on a single battery charge.

This page has information about Power Management for Linux. Power Management exists because many products are handheld or mobile, and consumers are interested in using their products for as long as possible on a single battery charge.

== Power Management Technology/Project pages ==

== Power Management Technology/Project pages ==

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*[http://linux-pm.org/ Linux PM] specific Wiki.

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* http://www.lesswatts.org/index.php - LessWatts.org

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** LessWatts.org is about how you can save real watts, however you use Linux on your computer or computers.

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** LessWatts is about creating a community around saving power on Linux, bringing developers, users, and sysadmins together to share software, optimizations, and tips and tricks.

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** LessWatts also provides the [http://www.lesswatts.org/projects/powertop/ powertop] tool, which helps to identify some power hogs.

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* [[OMAP Power Management]]

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** For Power Management on processors in the [[Texas Instruments]] OMAP family.

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== CELF Standards ==

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== Linux Power Management Mini-Summit ==

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*''add link to pdf here'' CELF Power Management Specification Version 1.0 R2 '''NOTE:''' this standard is old, CELF is working on new requirements, which are available elsewhere (see below)

*Mapping of ACPI states to omap power states: [[attachment:acpi-to-omap2-mapping.pdf]]

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* [[Device_Power_Management_Specification]]

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* [[Dynamic_Power_Management_Specification]]

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* Mapping of ACPI states to omap power states: [[Media:Acpi-to-omap2-mapping.pdf|ACPI to OMAP2 Mapping]]

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For some good overviews of different PM features relevant to embedded, you may want to look at the following papers:

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* Every Microamp is Sacred - A Dynamic Voltage and Current Control Interface for the Linux Kernel - Liam Girdwood [http://www.celinux.org/elc08_presentations/regulator-api-celf.pdf Slides] and [http://free-electrons.com/pub/video/2008/elc/elc2008-liam-girdwood-every-microamp-is-sacred.ogg video]

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* Power Management Quality of Service and How You Could Use it in Your Embedded Application - Mark Gross [http://www.celinux.org/elc08_presentations/elc2008_pm_qos_slides.pdf Slides] and [http://free-electrons.com/pub/video/2008/elc/elc2008-mark-gross-power-management.ogg video]

ELC2013 Tech Zone Contest

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Save this page/section and your new page link will appear in Red. Click it and begin editing your new page. Remember to conduct all Discussions on the Discussion page associated to every wiki page. The link is at the top, directly above the page title.

Introduction

This page has information about Power Management for Linux. Power Management exists because many products are handheld or mobile, and consumers are interested in using their products for as long as possible on a single battery charge.